|
gptkbp:instance_of
|
gptkb:whales
|
|
gptkbp:aired_on
|
up to 15 feet
|
|
gptkbp:behavior
|
yes
|
|
gptkbp:breaching_frequency
|
occasional
|
|
gptkbp:breeding_behavior
|
mating occurs in winter
|
|
gptkbp:breeding_range
|
warm lagoons
around 5-10 years
|
|
gptkbp:breeding_season
|
winter
|
|
gptkbp:calf_length
|
about 15 feet at birth
|
|
gptkbp:calf_nursing_duration
|
about 6-8 months
|
|
gptkbp:color
|
gray
|
|
gptkbp:conservation_efforts
|
protected under the Marine Mammal Protection Act
|
|
gptkbp:conservation_status
|
gptkb:Least_Concern
|
|
gptkbp:cultural_representation
|
featured in folklore and art
|
|
gptkbp:cultural_significance
|
important to indigenous peoples
|
|
gptkbp:diameter
|
up to 12 inches
|
|
gptkbp:diet
|
benthic invertebrates
|
|
gptkbp:ecological_role
|
important for marine ecosystems.
|
|
gptkbp:fins
|
two pectoral fins
|
|
gptkbp:first_described_by
|
by John Edward Gray in 1864
|
|
gptkbp:foraging_behavior
|
bottom feeding
|
|
gptkbp:gestation_period
|
about 13 months
|
|
gptkbp:habitat
|
gptkb:ocean
|
|
gptkbp:habitat_range
|
gptkb:North_Pacific_Ocean
|
|
gptkbp:has_natural_feature
|
baleen plates
|
|
gptkbp:has_skin
|
rough and mottled
|
|
gptkbp:historical_hunting
|
hunted extensively in the 19th century
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Gray Whale
|
|
gptkbp:is_vulnerable_to
|
climate change
|
|
gptkbp:known_for
|
long migrations
|
|
gptkbp:length
|
40-50 feet
about 1 ton at birth
|
|
gptkbp:lifespan
|
50-70 years
|
|
gptkbp:migration
|
spring and fall
up to 12,000 miles
from feeding grounds to breeding grounds
|
|
gptkbp:notable_move
|
migratory behavior
|
|
gptkbp:population
|
approximately 26,000
|
|
gptkbp:population_trend
|
gptkb:stable
|
|
gptkbp:predators
|
gptkb:killer_whales
|
|
gptkbp:reproduction
|
viviparous
|
|
gptkbp:research
|
conducted by marine biologists
|
|
gptkbp:research_importance
|
important for marine biology studies
|
|
gptkbp:scientific_name
|
gptkb:Eschrichtius_robustus
|
|
gptkbp:season
|
gptkb:Baja_California
|
|
gptkbp:skin_color
|
light to dark gray
|
|
gptkbp:social_behavior
|
generally solitary
|
|
gptkbp:social_structure
|
solitary or small groups
|
|
gptkbp:spouting
|
yes
|
|
gptkbp:subspecies
|
none recognized
|
|
gptkbp:tail_type
|
yes
broad and flat
|
|
gptkbp:threats
|
ship strikes, entanglement
|
|
gptkbp:vocalization
|
low-frequency sounds
used for social interactions
|
|
gptkbp:weight
|
40-80 tons
|
|
gptkbp:wildlife
|
not endangered
|
|
gptkbp:bfsParent
|
gptkb:whales
|
|
gptkbp:bfsLayer
|
4
|